Wrench.



Patented Jan. 30, I900.

A. E. KABSNER.

W R E N G H.

A lication filed. June 24, 1899.)

(No. Model.)

UNrrnn STATES PATENT QFFICE.

ADAM E. KARSNER, OF NE? YORK, N. Y., ASSIGNOR TO ED\V.ARD M. FOOTE AND ORVILLE-G. ALES, OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 642,129, dated January 30, 1900.

Application filed June 24,1899. fierial No. 721,744. (No model.)

To all 1071/0711, it may concern.-

Be it known that I, ADAM E. KARSNER, a citizen of the United States, residing in the city of New York, in the State of New York, have invented a new and useful rench, of which the following is a specification.

This invention relates generally to vehiclewrenches, and more particularly to an attachment to be connected to the ordinary wrench now in use for the purpose of enabling the wrench to fit nuts of diflerent sizes.

Vith this object'in view the invention consists, essentially, of a spring'plate one member of which is adapted to rest within the socke'tof the wrench, while the other member is provided with a clip adapted to engage the shank of handle portion of the wrench, thereby holding the attachment in its proper rela tive position.

Theinvention consists also in certain details of construction and novelties of combination, all of which will be fully described hereinafter and pointed out in the claims.

In' the drawings forming part of this specification, Figure 1 is a perspective view of a wrench constructed in accordance with my invention. Fig. 2 is a vertical longitudinal section of a portion of the wrench. Fig. 3 is a transverse section on the line 3 3 of Fig. 2 looking in the direction of the arrow. Fig. 4: is a detail perspective view of my invention detached from the wrench.

In carrying out my invention I employ an ordinary socket-wrench A, having an essentially rectangularshaped socket B at one end, while the opposite end is constructed in the usual manner to provide a series of differentsized sockets. The great difficulty with wrenches of this kind has been that the small sockets at the rear end of the shank were too small for the average-shred vehicle-nut and the large socket at the forward end was often too large. In order, therefore, to remedy this defect and at the same time provide an at tachment which will securely hold the nut in place in the socket after it has been unscrewed, I have devised my attachment, which, broadly speaking, consists of a spring-metal strip or plateO, bent in the shape of a V at G, the short end 0 projecting up into the socket, from the rear side of the same, while the longer member 0 extends rearwardly and upwardly to the bottom of the shank. A spring-clip O is constructed upon the upper end of the member 0 which spring-clip is of such size and shape that it will readily embrace the shank and securely hold the attachment in place, the rear wall of the wrench fitting in the angle C of the spring-plate. The clip 0 it will be understood, is formed by constructing a lateral extension at the top of the spring-plate and bending the same back upon itself,as most clearly shown in Fig. 4, and the clip can bc corrugated or shaped to correspond with the shape of the shank, thereby insuring a close fit. By having the spring-tongue 0 projecting into the socket B it will be readily understood that whenever the socket is placed upon the nut to be unscrewed the springtongue will be pressed back toward the rear wall, and the wrench is then operated the same as usual. The tension of the spring will always be sufficient to hold the nut within the socket after it has been unscrewed from the bolt or spindle. It will also be understood that a nut smaller than the socket proper can be easily unscrewed and also one of substantially the same size, inasmuch as the spring-tongue can be pressed back flat against the rear wall of the socket, and as this plate is very thin it will be seen that it will take up very little space and not sufticient to prevent a larger-sized nut being nocommodated by the socket. It will also'be understood that my invention is applicable to all classes of Wrenches employing a rigid socket, and by changing the angle of the parts it can be readily adapted to the different constructions of wrenches.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-- 1. A wrench attachment consisting of a spring-metal plate essentially V-shaped in spring-metal plate, essentially V-shaped in form, the shorter arm being adapted to rest within the socket of the wrench, and the longer arm having a spring-clip at its upper end free end of the spring-metal plate projecting adapted to engage the shank of the Wrench, forwardly and into the socket of the wrench, 10

substantially as shown and described. substantially as shown and described.

3. The combination with a Wrench havin 5 a shank and rigid socket, of the essentiall; ADAM KARSNER' V-shaped spring-metal plate having a spring- Vitnesses: clip at its upper end, said spring-clip being PHILIP F. MILLER,

adapted to engage the shank of the W1'enoh,the FRANK J. HOYLE. 

